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Dive into the research topics where D. Raković is active.

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Featured researches published by D. Raković.


Journal of Chemical Physics | 1995

Vibrational spectroscopy of polypyrrole, theoretical study

R. Kostić; D. Raković; S. A. Stepanyan; I. E. Davidova; L. A. Gribov

Theoretical vibrational spectra of polypyrrole are presented, based on a single‐periodic‐chain model and harmonic potential in‐plane and out‐of‐plane parameters transferred from the pyrrole molecule. The infrared‐absorption intensities were included in the calculations for the first time in polypyrrole. Experimental spectra are analyzed and compared with theoretical ones. Some modes in the experimental spectra indicate the presence of nonplanar conformation. Also, Raman frequencies were compared with experimental ones. Significant effects of electron–phonon coupling are absent.


Solid State Communications | 1982

IR spectra and structure of poly(p-phenylene) - a theoretical study

D. Raković; Ivan Božović; S. A. Stepanyan; L. A. Gribov

Abstract The frequencies and the intensities of IR absorption bands are calculated for poly(p-phenylene) (PPP) transferring the parameters from toluene, and they are found to correspond well to the experimental ones. Hence significant effects of electron delocalization and electron-phonon coupling are absent in (the IR spectrum of) PPP, in contrast to polyacetylene; the electronic structure of PPP is similar to that of the monomer. Symmetry considerations are utilized to discuss effects of possible nonplanarity of PPP and of orientation.


Journal of Molecular Structure | 1982

The solution of the inverse spectroscopic problem for the IR spectra of trans- and cis-hexatrienes

D. Raković; S. A. Stepanyan; L. A. Gribov; Yu. N. Panchenko

The “generalized inverse spectral problem” for trans- and cis-hexa-1,3,5-trienes and their 2,3,4,5-tetradeutero analogues is solved in the framework of valence-optical theory and the force and electrooptical fields are obtained. The basic factors influencing the positions and intensities of the absorption bands are determined. The agreement between experimental and calculated spectra justifies the chosen models which are also qualitatively confirmed by quantum chemical CNDO calculations.


Open Systems & Information Dynamics | 2002

On a Possible Physical Metatheory of Consciousness

M. Dugic; Milan M. Ćirković; D. Raković

We show that modern quantum mechanics, and particularly the theory of decoherence, allows formulating a sort of a physical metatheory of consciousness. Particularly, the analysis of the necessary conditions for the occurrence of decoherence, along with the hypothesis that consciousness bears (more-or-less) well definable physical origin, leads to a wider physical picture naturally involving consciousness. This can be considered as a sort of a psycho-physical parallelism, but on very wide scales bearing some cosmological relevance.


Acupuncture & Electro-therapeutics Research | 1991

Neural networks, brainwaves, and ionic structures: acupuncture vs. altered states of consciousness.

D. Raković

It is shown that neural networks with embedded brainwaves can cross the gap between the fast parallel unconscious mode of neuroscience and the slow serial conscious mode of psychology. The electromagnetic (EM) component of ultra low frequency (ULF) brainwaves appears to enable perfect fitting with narrowed limits of conscious capacity in normal awake states and very extended limits in altered states of consciousness - due to the biophysical relativistic mechanism of dilated subjective time base. An additional complex low-dielectric (epsilon r approximately 1) structure is also necessary in these processes. This structure can be related to a displaced (from the body) part of acupuncture ionic system which can conduct ULF brainwave currents approximately 10(-7) A, inside the conductive channels of the initial ionic concentration approximately 10(-15) cm-3, with a tendency of deterioration during a period of approximately 1 hour. It provides an extraordinary biophysical basis for traditional psychology, including trans-personal experiences down to the ultimate state of thoughtless consciousness. Notions, such as qi, subtle body, and causal body, are physically inevitably associated with ions, displaced (from the body) part of acupuncture ionic structure, and in it embedded an EM component of ULF brainwaves, respectively.


Materials Science Forum | 2006

Quantum Decoherence and Quantum-Holographic Information Processes: From Biomolecules to Biosystems

D. Raković; M. Dugic; M.B. Plavšić; Goran Kekovic; Irena Cosic; David Davidović

Our recently proposed quantum approach to biomolecular recognition processes is hereby additionally supported by biomolecular Resonant Recognition Model and by quantum-chemical theory of biomolecular non-radiative resonant transitions. Previously developed general quantumdecoherence framework for biopolymer conformational changes in very selective ligandproteins/ target-receptors key/lock biomolecular recognition processes (with electron-conformational coupling, giving rise to dynamical modification of many-electron energy-state hypersurface of the cellular quantum-ensemble ligand-proteins/target-receptors biomolecular macroscopic quantum system, with revealed possibility to consider cellular biomolecular recognition as a Hopfield-like quantum-holographic associative neural network) is further extended from nonlocal macroscopicquantum level of biological cell to nonlocal macroscopic-quantum level of biological organism, based on long-range coherent microwave excitations (as supported by macroscopic quantum-like microwave resonance therapy of the acupuncture system) - which might be of fundamental importance in understanding of underlying macroscopic quantum (quantum-holographic Hopfieldlike) control mechanisms of embryogenesis/ontogenesis and morphogenesis, and their backward influence on the expression of genes.


6th Seminar on Neural Network Applications in Electrical Engineering | 2002

Hopfield-like quantum associative neural networks and (quantum) holistic psychosomatic implications

D. Raković

It is shown that any quantum system has a formal dynamical structure of Hopfield-like associative neural network. Besides, it is pointed out that investigations in the field of microwave resonance therapy of the acupuncture system, as well as research of the interactions of consciousness with microscopic and macroscopic environment, imply the existence of local and nonlocal macroscopic biophysical affects, with tremendous potential implications in the fields of medicine, psychology, biology, physics, engineering, and philosophy/religion.


Materials Science Forum | 2005

Biopolymer Chain Folding and Biomolecular Recognition: A Quantum Decoherence Theory Approach

D. Raković; M. Dugic; M.B. Plavšić

In this paper we describe the biopolymer chain folding problem in the framework of the so-called quantum decoherence theory. As we propose a rather qualitative scenario yet bearing generality, it seems this provides promising basis for the solution-in-principle of the (semi) classically hard kinetic problem of biopolymer chain folding from coiled to native conformation in highly selective ligand proteins/target-receptors biomolecular recognition processes, implying underlying macroscopic quantum nonlocality on the level of biological cell.


Electro- and Magnetobiology | 2000

AN OVERVIEW OF MICROWAVE RESONANCE THERAPY AND EEG CORRELATES OF MICROWAVE RESONANCE RELAXATION AND OTHER CONSCIOUSNESS ALTERING TECHNIQUES

D. Raković; Z. Jovanović-Ignjatić; D. Radenović; M. Tomašević; Emil Jovanov; V. Radivojevic; P. Šuković; L. Škarić

Microwave Resonance Therapy (MRT) is a novel medical treatment representing a synthesis of the ancient Chinese traditional knowledge in medicine (acupuncture) and recent breakthroughs in biophysics. MRT affects the appropriate acupuncture points by the generation of high-frequency microwaves (52–78 GHz); remarkable clinical results are being achieved. In this paper, the quantum-like macroscopic biophysical bases of MRT are elaborated, offering new insights into the mechanisms of the assembling gap junction hemichannels on the internal microwave (MW) electromagnetic field spatiotemporal maxima at the temporary position of the acupuncture system, and hence insights into the biophysical nature of temporary psychosomatic health or disease. Such a picture also supports an electromagnetic/ionic “optical” ultra-low-frequency modulated MW quantum holographic neural network-like function of the acupuncture system (similar to complex-valued oscillatory holographic, Hopfield-like neural networks), and its essential relation to consciousness, as strongly suggested from biophysical modeling of altered states of consciousness. Finally, our electroencephalographic (EEG) investigations showed more or less characteristic EEG features in many subjects when relaxation was induced by MRT applied to corresponding acupuncture points, as well as by some other activities that may alter consciousness (transcendental meditation, musicogenic states, healer/healee noncontact interaction, drowsiness), demonstrating that EEG may permit rapid and reproducible identification of different states of consciousness, which could be useful in evaluating the effectiveness of consciousness altering techniques and related stress reduction.


symposium on neural network applications in electrical engineering | 2008

Classical-neural and quantum-holographic informatics: Psychosomatic-cognitive implications

D. Raković; Ana Vasic

Modeling of psychosomatic-cognitive functions is considered, in the framework of combined hierarchical brainpsilas and bodypsilas acupuncture neural networks. It is pointed out that presented models of brainpsilas hierarchical neural networks demonstrate encourageing advances in modeling cognitive functions. However, for modeling most cognitive and psychosomatic functions, the subtle biophysical quantum-holographic microwave Hopfield bodypsilas acupuncture neural networks are also necessary. On the one hand, they demonstrate existance of two cognitive modes of consciousness, and on the other hand, they represent natural framework for explaining contemporary meridian (psycho)therapies for very fast removing of psychosomatic disorders, demonstrating close relationship between acupuncture system and consciousness - with significant psychosomatic and transpersonal implications.

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L. A. Gribov

Russian Academy of Sciences

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M. Dugic

University of Kragujevac

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R. Kostić

University of Belgrade

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Emil Jovanov

University of Alabama in Huntsville

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